removed useless includes

[r8458]

ir/ir/irnode.h

@@ -14,13 +14,10 @@
 
 #include <stddef.h>
 
-#include "irgraph.h"
-#include "entity.h"
 #include "firm_common.h"
+#include "entity.h"
 #include "irop.h"
 #include "irmode.h"
-#include "type.h"
-#include "irextbb.h"
 #include "dbginfo.h"
 
 /**

ir/ir/irprog.h

@@ -35,8 +35,7 @@
 #ifndef _FIRM_IR_IRPROG_H_
 #define _FIRM_IR_IRPROG_H_
 
-#include "irnode.h"
-#include "type.h"
+#include "firm_types.h"
 #include "irgraph.h"